Just made an order ( 112965533) and used both the weekend coupon and also my render rewards from last month. I was just about to hit the 'yes, do buy this' button to get payment via Paypal when I noted that the amount seemed to have gone up. On checking I see that my render rewards have been used, but their use on the order has been dropped (despite being shown on the overview of the order). The order is currently in the unpaid state as I have not gone forward with it.